Copernicus Climate Change Service, Climate reanalysis

Climate reanalyses combine past observations with models to generate consistent time series of multiple climate variables. Reanalyses are among the most-used datasets in the geophysical sciences. They provide a comprehensive description of the observed climate as it has evolved during recent decades, on 3D grids at sub-daily intervals.气候再分析（Climate reanalyses）将历史观测数据与数值模式相融合，生成多气候变量的一致性时间序列。这类再分析资料是地球物理科学领域应用最为广泛的数据集之一。它们可基于亚日时间分辨率的三维网格，全面刻画近数十年来观测到的气候演变特征。